Nissan 300ZX User Manual
AUTOMATIC TRANSMISSIOH
SECTION
AT
CONTENTS
DESCRIPTION
GENERAL SERVICE NOTICE
ON-VEHICLE SERVICE
REMOVAL AND INSTALLATION
MAJOR OVERHAUL
DISASSEMBLY AT-20
REPAIR
TROUBLE-SHOOTING AND DIAGNOSES
A/T INTERLOCK SYSTEM
SERVICE DATA AND SPECIFICATIONS (S.D.S
SPECIAL SERVICE TOOLS
FOR
OF
E4N71B
......................................................
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ATAT- 4
ATAT-16
AT-18
..........................................................
COMPONENT PARTS AT-26
................................
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.......
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AT-49 ASS EM B LY
AT-64
AT-89
AT-95
AT-99
2
9
V
DESCRIPTION
OF
E4N71B
The Model E4N718 automatic transmission
latest addition to Nissan's lineup
This transmission
based
on
is
(mounted on the 1983 model
vide lockup
By
use
led
lockup system permits lockup.
of
3rd and
O.D.
of a microcomputer, the electronic-control-
of
transmissions.
the model L4N718
810),
and can pro-
by
electronic control.
is
the
Inhibitor witch
ehicls
speed
senmor
0.0.
Kiddown witch
Downshift solenoid
shift
witch and
0.0.
mce1
solemid
mntrol witch and indicator
low
tempersturn
smwr
SATS88A
AT-2
DESCRIPTION
OF
E4N71B
AT-3
~
GENERAL SERVICE NOTICE
Repair
Before proceeding with disassembly, thorough-
ly
clean the outside of the transmission.
important to prevent the internal parts of the
transmission from becoming contaminated by
dirt or other foreign matter.
a
Disassembly should be done in
area.
Use a nylon cloth or paper towel for wiping
parts clean. Common shop
that might interfere with the transmission’s
operation.
When disassembling parts, be sure to place
them in order in parts rack
back in the unit in their proper positions.
All parts should be carefully cleaned with
general purpose, non-flammable solvent before
inspection or reassembly.
Gaskets, seals, and O-rings should
It
is
also very important to perform functional
tests
whenever
The valve body contains many precision parts
it
is
designated.
rags
so
clean work
can leave lint
they can be put
be
It
replaced.
is
a
Notes
and requires extreme care when parts are
removed and serviced. Place removed
a
parts rack
valve body in the same positions and
quences. Care will also prevent springs and
small parts from becoming scattered or lost.
Before assembly, apply
A.T.F. to
O-rings and
Care should be taken to avoid damaging
O-rings,
Abbreviations used throughout this section stand
for the following:
0
A.T.F.
D,
D,
D3
D4
O.D.
1,
1
.....
..........
..........
..........
..........
......
..........
..........
so
they can be put back in the
a
coat
of
all
parts. Vaseline may
seals.
Do not
seals
and gaskets when assembling.
Automatic transmission fluid
Drive range 1st gear
Drive range 2nd gear
Drive range 3rd gear
Drive range 4th
Overdrive
1 range 2nd gear
1
range 1st gear
use
any grease.
gear
Rarts
recommended
be
applied
on
se-
to
CONTROL
Pressure
VALVE UPPER
BODY
3rd4th shift
Contrc
valve7
Valve
Vacuum
yThrottle
throttle valve
back-up
valve
AT-4
SAT742
GENERAL
Control Valve (Cont'd)
SERVICE
NOTICE
CONTROL
VALVE
LOWER
BODY
r3rd-2nd
timing valve
O.D.
Lock-up
cancel
valve
Control Valve and
spring, rRetaining pin
O.D.
Lock-up
Cancel Valve
control
valve
SAT705
Retaining pin)
SAT498
AT-5
GENERAL SERVICE NOTICE
Oil
channels which connect components
located in the
OIL CHANNELS IN OIL PUMP
Oil pump wver side
Cooler in press"
Oil
pump housing side
areas
shown below.
Oil
il
pump suction hole
Channel
are
OIL
CHANNELS IN TRANSMISSION CASE
Front face side
Front
5
0.0.
Oii
DumD
0.0.
indicator
pressure
lubrication
discharoe hole-
Forward clutch
pWSS",e
Air breather1
Lower face side
pump discharge hole
Servo apply pressure
Direct clutch apply
.O.
servo
release
rvo
release pressure
5
pressure
Governor pressure
IT0 control valve1
Governor feed
pressure
(From control valve)
Low
I
pressure
5
reversa
(Rear)
SAT501
brake
-Line pressure
(For
lockup control)
SAT500
Torque converter pressure
Forward clutch (Rear) pressure
High-reverre clutch (Front1 pressure
OIL CHANNELS IN
O.D.
SAT502
CASE
AT-6
GENERAL SERVICE NOTICE
Oil
Chann
I
(Cont'd)
OIL CHANNELS IN DRUM SUPPORT
Forward clutch
Front
&
OD.
From
3.4
Shih
valveJ
LOil
pump
discharge hole
Mechanicz
In the
select position.
E4N71B
automatic transmission, each part operates
lubrication
SAT503
OIL
CHANNELS IN CONVERTER HOUSING
(For lockup control)
To
\
Operation
as
shown in the following table
lock-up Control
-Drain
valve
at
each gear
SAT706
The
low
81
reverse
brake
is
applied
in
"1i"range
to
prevent free wheeling when coasting and allows engine braking.
AT-7
GENERAL
Hydraulic Control Circuits
SERVICE
NOTICE
AT-8
6T707
ON-VEHICLE SERVICE
1.
Drain fluid by removing oil pan.
2.
Remove kickdown solenoid and vacuum dia-
&
phragm
Be
careful not to lose vacuum rod.
rod.
Vacuum
diaphragm
Contr
Downshift
3.
Remove control valve assembly.
Be
careful not to drop manual valve out of valve
501
body.
SAT506
1
40
mm
2
35mm11.38inl
3
25
mm
After installing control valve to transmission
sure
case, make
moved to
6.
Install kickdown solenoid and vacuum
phragm
Make
sure
all
81
rod.
that
interfere with side plate
that control lever can
positions.
vacuum diaphragm
of
control valve.
rod
does not
(1.57
(0.98
dia-
in1
in)
be
4.
Disassemble, inspect and assemble control valve
assembly.
5.
Install control valve assembly.
Set manual
Refer
to Control Valve Body.
shaft
at Neutral, then align manual
plate with groove in manual valve of control
valve assembly.
in
3
Securing bolts come
different lengths.
AT-9
ON-VEHICLE SERVICE
-
Extension
1.
Remove oil
2.
Apply coat
drive new oil seal into place.
Oil
seal.
of
A.T.F.
Seal Replacement
to oil
seal
surface, then
-
Parking Component
1.
Remove oil pan.
2.
Remove propeller shaft.
3.
Remove speedometer pinion.
4.
Support transmission with a jack, then remove
rear mounting bolts.
SAT511
3.
Coat sealing lips with vaseline, then install
propeller shaft.
AT-1
SAT709
0
ON-VEHICLE SERVICE
-Parking Component (Cont'd)
5.
Remove rear extension bolts, then draw out
rear extension with rear mounting.
6.
Remove control valve assembly.
7.
Inspect and repair parking components. Check
component parts for wear or damage.
-
-Inhibitor Switch Adjustment-
Disconnect harness
hibitor switch.
Check continuity
at
connector, then remove in-
at
"N",
"P"
and
"R"
SATOBOA
ranges.
-Governor Valve Assembly-
1.
Drain oil by removing oil pan.
2.
Remove
3.
Remove governor valve assembly.
rear
extension with
rear
mounting.
With
control lever held in "Neutral", turn
an
manual lever
tions to
the same. (Current normally begins to flow
before manual lever reaches a angle of
either direction.)
If
normal
properly adjust inhibitor switch.
Adjust inhibitor witch
1.
Place the manual valve
position).
2.
Remove the screw.
see
current flows outside normal range, or
flow range
equal amount in both direc-
if
current flow ranges are nearly
is
out of specifications,
as
follows:
in
Neutral (vertical
1.5"
in
if
4.
Inspect
Refer
and
repair governor valve assembly.
to Governor for inspection.
AT-I
I
ON-VEHICLE SERVICE
-Inhibitor Switch Adjustrnent(Cont'd)
3.
Loosen the attaching bolts.
4.
Using an aligning pin,
move the switch until the pin
the
in
rotor.
12.0
mm
falls
(0.079
in)
into the hole
dia.]
SAT098
-Manual Linkage Adjustrnent-
Move the shift lever from the
range.
each
If
ing the range
needs adjustment.
1.
2.
You
should be able to feel the detents in
range.
the
detents cannot be
is
improperly aligned, the
Place selector lever in
Loosen lock nuts.
felt
"P"
"P"
range to
or the pointer indicat-
range.
"1"
linkage
5.
Tighten the attaching bolts equally.
6.
Recheck for continuity.
switch.
If
faulty, replace the
3.
Tighten lock nut
pulling selector lever toward
without pushing button.
4.
Back off lock nut
tighten lock nut
[01
:
Locknut
8-
11
(0.8
-
N.m
1.1
Do
@
until
it
touches trunnion
"R"
@
114
-
@
to the specified torque.
kg-m,
5.8
-
8.0
ft-lb)
wrh
not
range side
1/2
turns and
Fq
Lock
5.
AT-I
2
Move selector lever from
range. Make sure
smoothly.
that
selector lever
"P"
range to
can
"1"
move
ON-VEHICLE SERVICE
Vacuum Diaphragm Rod
Adjustment
1.
Remove diaphragm from transmission
2.
Using a depth gauge, measure depth
sure vacuum throttle valve
as
far
as
body
3.
Check
proper length rod.
Note
seated
"L"
i
Vacuum
Vacuum diaphragm
throttle
possible.
depth with chart below and select
bady
valve
Transmission
Depth
Valve Lmdy side plate
rod
selection
\
/
is
case
m
case.
"L".
Be
pushed into valve
Vacuum diaphragm
wall
\
Diaphragm rod
SAT078
Downshift Solenoid
1.
Remove downshift solenoid and O-ring.
Catch oil dropping out
2.
Check to verify that downshift solenoid
operating properly.
new one.
of
the hole.
If
faulty, replace
it
with
SAT516
is
a
Measured depth
mm
(in)
Under 25.55
(1.0059)
25.65
-
26.05
(1.0098- 1.0256)
26.15
-
26.55
(1.0295- 1.0453)
26.65
-
27.05
(1.0492- 1.0650)
Over 27.15
(1.0689)
"L"
Rod length
mm
(in)
29.0
(1.142)
29.5
(1.161)
30.0
(1.181)
30.5
(1.201
31
.O
(
1.220)
Part number
31932- XO103
31932. XO104
31932. XOlOO
31932. X0102
31932 - XOlOl
SAT517
AT-I
3
ON-VEHICLE
SERVICE
Kickdown
When the pedal
heard just before the pedal bottoms
click
is
not heard, loosen the locknut and extend
the switch until the pedal
the switch and the switch clicks.
ah
is
fully depressed, a click can be
Kickdown switch7
Downshift solenoid
Downshift solenoid
Accelerator
Accelerator/
oadsl
oadsl
r---.
lever
makes contact with
,
-
out.
Switch
If
the
SAT719
Adjustment
Do
not allow
This would cause the transmission to downshift on
part
throttle.
DIAGNOSIS:
Switch can
still
does not kickdown:
Check the continuity
available current.
The vehicle upshifts
2nd)
and
only: The kickdown switch may be internally
shorted. (When
tinuity through
the
switch to make contact too soon.
be
heard clicking, and the transmission
90
km/h (2nd to 3rd)
the
the
of
the switch.
at
approximately
switch
switch in any position).
is
shorted,
(34
Also
and
there
check for
55
56
(1st to
MPH)
is
con-
ON
or
START
Refer to
POWER SUPPLY
[Blue:
-
R.H. ride1
BR
-@
-
CONTROL UNIT
-
BODY
GROUND
[Back
rids)
AT-I
4
ON-VEHICLE SERVICE
O.D. CONTROL
INDICATOR LAMP
Inspection
SWITCH
Overdrive and
&
O.D.
SAT236A
Lockup
Inspection
Confirm that clicking sound
applied.
Control
I
is
heard when power is
SAT620
O.D.
CANCEL SOLENOID AND LOCKUP
SOLENOID
Location
OD.
cancel
solenoid
SATOBJA
AT-I
5
REMOVAL AND INSTALLATION
Removal
Remove bolts securing torque converter to
drive plate.
a.
Remove those bolts turning crank shaft.
b. Before removing torque converter, inscribe
on
two
parts
so
matching marks
be replaced in their original positions during
assembly.
0
Plug up openings such
CAUTION:
Take care when dismounting transmission
strike any adjacent parts.
as
oil charging pipe, etc.
that they may
not
to
Installation
Drive plate runout
Maximum allowable runout:
0.5
mm
(0.020
If this runout
plate and ring gear.
When connecting torque converter to transmission, measure distance
that they are correctly assembled.
Distance
"A:
More than
is
35
out
mm
in)
of
allowance, replace drive
"A"
to be certain
(1.38
in)
SAT718
AT-1
Install converter to drive plate.
Align matching marks painted across both
during disassembly.
0
After converter
several
mission rotates freely without binding.
turns and check to be sure that trans-
is
installed, rotate crankshaft
6
Pa&
REMOVAL AND INSTALLATION
Installation (Cont'd)
a
Check inhibitor switch for operation.
a
Check fluid level in transmission.
Move selector lever through
sure
that transmission operates correctly.
With parking brake applied, rotate engine
idling. Move selector lever through
"D",
to
"2",
to
"1"
and to
felt
should be
time transmission
a
Check to be sure that line pressure
To
do this, refer to Line Pressure Test.
Perform
stall
by hand gripping selector each
is
shifted.
test.
all
positions to be
"R".
A
at
"N"
to
slight shock
is
correct.
AT-I
7
p))
:
N.m
1kg.m.
l1-lbl
@
39.49 14.0 - 5.0.29.361
LB
10.1511.0-1.5.7.111
*>
44 - 54 14.5.
13. 18 (1.3.
@
5.710.5~0.7.3.6.5.11
:e
8.
11
6
7. 9 10.7
[HI
5.4. 1.4 10.55. 0.75.
lo
5. 7 10.5. 0.7. 3.6. 5.11
@
29.39 13.0.4.0.22~291
(0.8.
.
0.9.
5.5.
1.8.9.
1.1.5.8.8.01
5.1 . 6.51
33.401
13)
4.0.
5.41
MAJOR
Qocl
pump aiiemblv
OVERHAUL
CO""0
shell
O.D.
servo
band brake
assernblv
@
0:
Always replace when disassembled.
*
:
Black
.
surface is front side.
:
selen with
:
Adjustment
:
Apply
A.T.F.
proper
is
rewired.
thickness.
AT-I
8
MAJOR
Front
OVERHAUL
planetary
gear
arrsmblv
-1
AT-19
SAT559A
1.
Remove torque converter, drain
through end of rear extension, and place transmission on
2.
Remove lock-up solenoid.
Tool.
0
lJ34308,
J3289-
DISASSEMBLY
4.
A.T.F.
SAT520
Remove oil pan and inspect
analysis
types
very dark, smells burned, or contains foreign
particles, the frictional material (clutches,
band.) may need replacement.
that will not wipe clean indicates varnish build
up which can cause valves,
to stick and may inhibit pump pressure.
its
contents. An
of
any foreign matter can indicate the
of
problems to look for. If the fluid
A
tacky film
servo,
and clutches
is
3.
Remove converter housing.
5.
Loosen 2nd band
and tighten piston stem.
servo
piston stem lock nut
SAT006
SAT715
SAT003
AT-20
6.
Remove O.D. component assembly, then re-
move high-reverse clutch (Front) thrust washer
and needle bearing
7.
Draw out input shaft and intermediate shaft.
&
race.
DISASSEMBLY
9.
Remove O.D. servo cover, then loosen O.D.
band
10.
Remove O.D. pack (O.D. planetary gear
direct clutch assembly).
servo
Diston stem.
&
8.
Attach
Tool
to pump and remove pump.
rST25850000
lJ25721-AI
SAT523
SAT524
AT-21
11.
Remove needle bearing
&
race and direct
clutch thrust washer, then remove O.D.
band & strut.
Thrust
washer
SAT526
brake
SAT527
DISASSEMBLY
12.
Remove
retainer.
13.
Remove accumulator snap ring, then apply
pressure to remove accumulator plug, piston
and spring.
O.D.
rAccumulator
servo
assembly by lightly tapping
SAT528
15.
Remove drum support.
16.
Remove downshift solenoid, vacuum dia-
phragm & rod and O-rings.
rOownshift
solenoid
SAT531
14.
Remove
O.D.
cancel solenoid and O-ring.
SAT530
LVacuum
17.
Remove speedometer pinion.
diaphragm
SAT532
SAT533
AT-22
DISASSEMBLY
18.
Remove control valve body.
Remove manual valve from valve body
precaution, to prevent valve from dropping out
accidentally.
as
a
~
To
prevent brake
linings
from cracking or peeling,
do not stretch the flexible band unnecessarily.
Before removing the brake band, always secure
with a clip as shown
in
the figure below.
it
Leave the clip in position after removing the brake
band.
Flexible
band
type
brake
19.
Remove 2nd brake band strut. Brake band and
&
clutch
planetary gear pack [including high-
reverse clutch (Front), forward clutch (Rear)
and front planetary gear] may be removed
together.
20.
AT-23
Remove 2nd band
pressure
to
remove 2nd band servo.
/Approximately
2
mm
(0.08
in1
servo
retaining bolts. Apply
dia.
wire
SAT656
DISASSEMBLY
21. Check one-way clutch to
see
if
it
operates
properly.
SAT536
22. Remove rear planetary carrier snap ring and
rear planetary carrier.
24.
Remove connecting drum with internal
II
25.
Pry
off one end of snap ring with a screwdriver.
Remove snap ring from low and reverse brake
assembly while applying plier force in direction
of arrow.
gear.
SAT017
23.
Remove output shaft snap ring.
SAT015
26. Remove low and reverse brake clutch assembly.
AT129
AT-24
27.
Remove
Be
careful
28.
Remove output shaft with governor.
rear
not
rWasher
extension.
to
lose retainer washer.
DISASSEMBLY
30.
Remove one-way clutch inner race, return
thrust washer, low and reverse return spring,
and spring thrust ring.
SAT537
31.
Apply air pressure to remove low and reverse
brake piston.
11
29.
Remove governor thrust washer and needle
bearing.
Remove one-way clutch inner race attaching
,,
,
Tool.
I.,
hex-head slotted bolts using
SAT019
SAT020
AT-25
-~
32.
Remove snap ring, then remove lock nut,
manual plate and parking rod.
33.
Remove inhibitor switch and manual shaft.
34.
Remove
O.D.
indicator switch and O-ring.
’
SAT022
SAT720
REPAIR FOR COMPONENT PARTS
Oil
Pump
Oil
pump
cover
Oil
pump
inner
gear
1
T
Oil
pump housing
1
DISASSEMBLY
Remove pump cover from pump housing.
1.
2.
Stake
off
retaining pin with a punch [outer dia.
1.8
mm
1.5 to
(0.059
to
0.071
move lock-up control valve and spring.
SAT538
in)], then
re-
Punch>
Lockup
cO"tr0l
Retaining
"alw
pin
Spring
INSPECTION
1.
Inspect pump body, bushing and pump shaft,
for wear.
2.
Inspect gears, lock-up control valve, spring
all
internal surfaces for damage and visible
wear.
SAT721
SAT722
and
AT-26
REPAIR
FOR
Oil
3.
Measure clearance between outer par and
crescent.
Standard clearance:
0.14 - 0.21 mm (0.0055 - 0.0083 in)
Wear limit:
mm
0.25
(0.0098 in)
COMPONENT PARTS
Pump
(Cont’d)
5.
Measure clearance between
cover with a feeler gauge and straight edge.
Standard clearance:
0.02
-
0.04
mm
Wear limit:
0.08
mm
(0.0031 in)
gears
(0.0008 - 0.0016 in)
and
pump
4.
Measure clearance between outer
pump
housing.
Standard clearance:
0.05 - 0.20
Wear limit:
mm
0.25
mm
(0.0020 - 0.0079 in)
(0.0098 in)
gear
AT162
and
SAT026
AT-27
REPAIR
Oil
Pump (Cont'd)
FOR
COMPONENT PARTS
Drum Support
ASSEMBLY
1.
Install lock-up control valve and spring into oil
pump cover, then tap new retaining pin.
2.
Mount pump housing in
spacer.
outer pump gears on
to pump housing. Temporarily assemble oil
pump.
Set
up pump housing with inner and
it
Tool
and suitable
and install pump cover
ELL-
(
-
1
spacer
[Thickness
3.
Set
the cover to within the run-out
specified total indicator reading.
Total indicator reading:
Less
than
0.07
'\
M
mm
(0.79
mm
(0.0028
in)]
in)
SAT540
of
the
DISASSEMBLY
Remove drum support and gasket from
1.
case.
2.
Stake
dia.
remove
Don't
off
1.5
stake
retaining pin with a punch [outer
to
1.8
mm
(0.059
O.D.
cancel
it
off from contacting face side.
valve
to
0.071
and spring.
Retaining
cancel
waive-
o'D'
spri2k
O.D.
SAT531
in)], then
pin
7
LST25580001
(-1
4.
Tighten pump securing bolts to the specified
torque.
Recheck run-out.
SAT541
AT-28
REPAIR
FOR
COMPONENT PARTS
Drum
INSPECTION
Inspect drum support bushing and ring groove
areas for wear.
Measure clearance between Seal ring and ring
groove.
Support (Cont'd)
SAT642
Standard clearance:
0.05
-
0.20
mm
(0.0020
Wear limit:
0.20
mm
(0.0079
Inspect
internal surfaces for damage visible wear.
O.D.
cancel valve & spring and all
in)
-
0.0079
in)
SAT545
AT-29
REPAIR
FOR
Drum
COMPONENT PARTS
rt
Sup1
(Cont'd)
ASSEMBLY
Install
1.
support, then tap new retaining pins.
2.
Install lubrication plug in drum support.
O.D.
cancel
valve
and spring into drum
3.
Install one-way orifice in
One-way
orifice
O.D.
Steel
case.
ball
4.
AT-30
Mount
spacer.
oil
pump assembly in
Spacer
[Thickness
20
mm
(0.79
Tool
id1
and suitable
SAT540
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